{ "id": "cond-mat/0402269", "version": "v1", "published": "2004-02-10T08:42:55.000Z", "updated": "2004-02-10T08:42:55.000Z", "title": "Absence of kinetic effects in reaction-diffusion processes in scale-free networks", "authors": [ "Lazaros K. Gallos", "Panos Argyrakis" ], "comment": "4 pages, 4 figures, to be published in Physical Review Letters", "journal": "Phys. Rev. Lett. 92, 138301 (2004)", "doi": "10.1103/PhysRevLett.92.138301", "categories": [ "cond-mat.dis-nn", "cond-mat.stat-mech" ], "abstract": "We show that the chemical reactions of the model systems of A+A->0 and A+B->0 when performed on scale-free networks exhibit drastically different behavior as compared to the same reactions in normal spaces. The exponents characterizing the density evolution as a function of time are considerably higher than 1, implying that both reactions occur at a much faster rate. This is due to the fact that the discerning effects of the generation of a depletion zone (A+A) and the segregation of the reactants (A+B) do not occur at all as in normal spaces. Instead we observe the formation of clusters of A (A+A reaction) and of mixed A and B (A+B reaction) around the hubs of the network. Only at the limit of very sparse networks is the usual behavior recovered.", "revisions": [ { "version": "v1", "updated": "2004-02-10T08:42:55.000Z" } ], "analyses": { "keywords": [ "scale-free networks", "reaction-diffusion processes", "kinetic effects", "normal spaces", "sparse networks" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. Lett." }, "note": { "typesetting": "TeX", "pages": 4, "language": "en", "license": "arXiv", "status": "editable" } } }